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Plant hardiness zone 9A

ZIP codes in USDA plant hardiness zone 9A. Population, income, and housing from US5 published metrics.

Zone
9A
ZIP codes
2,042
Population
22,746,497
Median household income (avg.)
$70,574
Average home value
$303,665
All hardiness zones Opportunity zones ZIP lists ZIP rankings

What is USDA zone 9A?

Zone 9A is a USDA / PRISM plant hardiness band based on average annual extreme minimum winter temperature. Growers use it to compare winter-cold exposure across regions — it is a climate label, not a planting prescription.

US5 lists 2,042 indexable ZIP codes in this band, covering about 22,746,497 combined ZIP-area residents. The table below is sorted by population; use pagination to browse the full published set.

How to use this zone page

Scan communities inside zone 9A, then open any ZIP for full demographics, climate normals, schools, and nearby amenities. Zone membership comes from the USDA hardiness summary joined to published ZIP profiles.

ZIPs in zone 9A

ZIP City County State Population Income Home value
78750 Austin Travis County TX 29,322 $123,722 $552,800
97008 Beaverton Washington County OR 29,183 $90,246 $555,300
78617 Austin Travis County TX 28,932 $78,019 $247,800
98106 Seattle King County WA 28,889 $115,529 $666,800
70503 Lafayette Lafayette Parish LA 28,883 $94,360 $326,800
78738 Bee Cave Travis County TX 28,790 $169,911 $754,600
31322 Pooler Chatham County GA 28,695 $91,293 $284,300
97062 Tualatin Washington County OR 28,620 $106,987 $607,800
75901 Lufkin Angelina County TX 28,602 $59,083 $163,600
95472 Occidental Sonoma County CA 28,588 $109,775 $995,200
70806 Baton Rouge East Baton Rouge Parish LA 28,551 $53,430 $321,400
31525 Country Club Estates Glynn County GA 28,434 $65,896 $198,700
98107 Seattle King County WA 28,390 $137,748 $924,900
95370 Phoenix Lake Tuolumne County CA 28,373 $72,433 $416,200
89044 Henderson Clark County NV 28,319 $106,875 $536,800
39466 Picayune Pearl River County MS 28,292 $50,926 $161,400
78746 Austin Travis County TX 28,268 $183,028 $1,352,500
77833 Brenham Washington County TX 28,234 $67,887 $261,900
98146 Burien King County WA 28,182 $108,460 $642,300
97214 Portland Multnomah County OR 28,128 $86,879 $733,200
98116 Seattle King County WA 28,091 $130,504 $917,000
98335 Artondale Pierce County WA 27,956 $130,304 $736,400
98311 Tracyton Kitsap County WA 27,947 $98,714 $448,100
78621 Elgin Bastrop County TX 27,860 $88,246 $262,300
97005 Beaverton Washington County OR 27,812 $74,306 $476,000
97220 Portland Multnomah County OR 27,810 $68,976 $427,700
97003 Aloha Washington County OR 27,791 $96,962 $458,200
85718 Catalina Foothills Pima County AZ 27,721 $112,664 $677,400
95945 Grass Valley Nevada County CA 27,675 $61,068 $496,600
97420 Coos Bay Coos County OR 27,579 $61,624 $282,300
32505 Brent Escambia County FL 27,543 $41,039 $120,300
95492 Windsor Sonoma County CA 27,455 $131,022 $777,700
93280 Wasco Kern County CA 27,266 $55,060 $255,300
31794 Tifton Tift County GA 27,185 $44,569 $111,900
78731 Austin Travis County TX 27,136 $102,886 $839,500
78261 San Antonio Bexar County TX 27,060 $140,120 $409,400
70501 Lafayette Lafayette Parish LA 26,956 $31,723 $117,200
78259 San Antonio Bexar County TX 26,931 $109,429 $370,800
77385 The Woodlands Montgomery County TX 26,889 $112,798 $294,900
85747 Tucson Pima County AZ 26,808 $107,290 $345,900
78728 Austin Travis County TX 26,776 $74,048 $392,600
98188 Tukwila King County WA 26,769 $76,559 $452,900
29405 North Charleston Charleston County SC 26,717 $54,566 $266,200
89145 Las Vegas Clark County NV 26,675 $73,515 $348,800
78212 San Antonio Bexar County TX 26,670 $60,222 $299,400
98102 Seattle King County WA 26,583 $114,395 $988,700
70517 Breaux Bridge St. Martin Parish LA 26,570 $58,342 $151,600
29906 Beaufort Beaufort County SC 26,562 $61,350 $236,900
78702 Austin Travis County TX 26,495 $101,304 $644,200
34476 Liberty Triangle Marion County FL 26,397 $65,429 $260,300

Frequently asked questions

What does zone 9A mean?

Zone 9A is a USDA plant hardiness band based on average annual extreme minimum winter temperature. It helps compare winter-cold exposure across places; it is not a planting prescription.

Why is the table sorted by population?

Population ordering surfaces larger communities first. The zone total counts all published ZIPs in band 9A; page through the table to browse beyond the first page.

Is a hardiness zone the same as a climate normal?

Hardiness zones summarize winter extreme cold. ZIP pages on US5 also show precipitation, snow, and FEMA risk context separately.